EP 3224017 B1 20181010 - INTEGRATED PROCESS FOR PRODUCING POLYESTER TAPE
Title (en)
INTEGRATED PROCESS FOR PRODUCING POLYESTER TAPE
Title (de)
INTEGRIERTES VERFAHREN ZUR HERSTELLUNG EINES POLYESTERFILMS
Title (fr)
PROCÉDÉ INTÉGRÉ POUR PRODUIRE UN FILM EN POLYESTER
Publication
Application
Priority
- EP 14194956 A 20141126
- EP 2015077403 W 20151124
Abstract (en)
[origin: WO2016083326A1] The present invention relates to an integrated process for the production of polyester tape, comprising the steps of a) preparing feed polyester comprising a polymerisation reaction in one or more reactors in series and measuring the viscosity of the obtained feed polyester, b) feeding the feed polyester obtained from step a) and optional additives to a melt mixing device, mixing said feed polyester and said optional additives so as to form a molten polyester composition and measuring the viscosity of the obtained polyester composition, c) extruding the molten polyester composition through a film extrusion die thereby forming a molten film of said polyester composition, d) preparing a polyester tape from said molten polyester film, said preparing comprising trimming the edges of the film at a stage where said film is below its melting temperature, e)feeding at least a part of the trimmed edges obtained in step d) in-line to the melt mixing device in step b) wherein the amount of trimmed edges and optional further additives fed to the melt mixing device in step b) is controlled on the basis of the measured viscosity of the polyester composition.
IPC 8 full level
B29C 47/08 (2006.01); B29C 47/92 (2006.01); B29C 48/08 (2019.01); B29C 48/92 (2019.01)
CPC (source: CN EP US)
B29B 7/00 (2013.01 - US); B29C 48/0022 (2019.01 - EP US); B29C 48/022 (2019.01 - EP US); B29C 48/08 (2019.01 - CN EP US); B29C 48/277 (2019.01 - CN EP US); B29C 48/92 (2019.01 - CN EP US); B29D 7/01 (2013.01 - US); B29C 2948/922 (2019.01 - CN EP US); B29C 2948/92333 (2019.01 - EP US); B29K 2067/00 (2013.01 - US); B29L 2007/007 (2013.01 - CN EP US); Y02P 70/10 (2015.11 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2016083326 A1 20160602; CN 107107437 A 20170829; CN 107107437 B 20190730; EP 3224017 A1 20171004; EP 3224017 B1 20181010; US 2017312971 A1 20171102
DOCDB simple family (application)
EP 2015077403 W 20151124; CN 201580071403 A 20151124; EP 15798433 A 20151124; US 201515531032 A 20151124